2056105900 has 36 divisors (see below), whose sum is σ = 4696583080. Its totient is φ = 779155200.

The previous prime is 2056105897. The next prime is 2056105949. The reversal of 2056105900 is 95016502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539181 + ... + 542980.

Almost surely, 2^2056105900 is an apocalyptic number.

2056105900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2056105900 is an abundant number, since it is smaller than the sum of its proper divisors (2640477180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2056105900 is a wasteful number, since it uses less digits than its factorization.

2056105900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082194 (or 1082187 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 2056105900 is about 45344.3039421712. The cubic root of 2056105900 is about 1271.5940675272.

The spelling of 2056105900 in words is "two billion, fifty-six million, one hundred five thousand, nine hundred".